Lipitor is a medication used to lower cholesterol levels in the blood, while low sodium diets are often recommended for individuals with high blood pressure or heart disease. The question of whether Lipitor and low sodium are safe to take together is a valid concern for patients who may be taking both.
There is no indication from the sources provided that Lipitor and low sodium are unsafe to take together. According to the first source , Lipitor is a medication that can be taken with or without food, and there are no known interactions between Lipitor and sodium. The second source  discusses a study that found that a low sodium diet was associated with a lower risk of cardiovascular disease, but there is no mention of any negative interactions between a low sodium diet and Lipitor.
The third source  is a review of studies on the safety and efficacy of Lipitor, and it does not mention any negative interactions between Lipitor and low sodium. The review does note that Lipitor may increase the risk of developing diabetes, but this is not related to the consumption of sodium.
In summary, based on the sources provided, there is no evidence to suggest that Lipitor and low sodium are unsafe to take together. Patients should consult with their healthcare provider regarding their individual medication and dietary needs.